US Bridges

5th ST over Upper Iowa River

Good

Winneshiek County, Iowa · 000000000 · Structure no. 000000000347626

Built
1983
42 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
335 ft
5 main spans
Daily traffic
830
2022 count
Owner
County
County Highway Agency

About this bridge

5th ST over Upper Iowa River is a prestressed concrete continuous stringer/multi-beam or girder carrying 5th ST over Upper Iowa River in Winneshiek County, Iowa. It was built in 1983, so it is 42 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 830 vehicles a day, projected to reach 830 by 2043. The structure is 335 ft (102.1 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries5th ST
CrossesUpper Iowa River
Location000000000
RouteCity Street 0
StateIowa
Coordinates43.30834, -91.77604
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.6 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length335 ft (102.1 m)
Longest span82 ft (25 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic830 (2022)
Projected traffic830 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 5th ST over Upper Iowa River built?

It was built in 1983, making it 42 years old in 2025.

What condition is 5th ST over Upper Iowa River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does 5th ST over Upper Iowa River carry?

About 830 vehicles per day (2022 count).

How long is 5th ST over Upper Iowa River?

The structure is 335 ft (102.1 m) long with a longest span of 82 ft (25 m) and a deck 31 ft wide.

Who owns 5th ST over Upper Iowa River?

It is owned by the County Highway Agency.